Handgun Ammo

Handgun ammo consists of cartridges that were originally designed to be used in either a revolver or a pistol. Pistol ammo, which is loaded in a magazine rather than a cylinder, is chambered in a variety of calibers including 9mm ammo, 40 caliber ammo and 45 caliber ammo. A handgun will have its correct cartridge stamped on the barrel or slide.